How are deck beams or girders attached to posts? On Residential (R-1) lots with access to bodies of water, decks … This course will provide an overview of common questions and challenges with design and construction of residential wood decks. Install railings on any deck that is 30 inches or more from the surrounding surface and on at least one side of a stairway leading to the deck. SCOPE SINGLE LEVEL EXTERIOR DECKS ATTACHED TO THE EXTERIOR WALL OF A ONE- OR TWO-FAMILY DWELLING. h�ęmO�8���?� This webinar will provide an overview of DCA 6 along with its Commentary and Appendices and include several examples showing application of the deck guide. Columns in enclosed crawl spaces or unexcavated areas located within the periphery of the building when . h�b```��l�[�@��(������֜ [�%�����@:`�p�R�xؤ�j����� How are lateral load devices provided for a deck being attached to an existing home? (N��@���};)�*�o1u�)��M�TeY��D��p\J����CW�6�j��&�aa��P�P7���X+l�l�:,w����q^��̬t�� Improperly built decks can be dangerous. This article highlights certain engineering topics related to DCA 6 and provides some background for those issues. Updates and revisions are frequently being made to the document so it is recommended that building departments post a link to DCA 6 on their websites. DCA 1 - Flame Spread Performance of Wood Products Used for Interior Finish, DCA 2 - Design of Fire-Resistive Exposed Wood Members For single-family zones, the total coverage is limited to 35 percent of the lot (on lots 5,000 square feet or larger) or 1,000 square feet plus 15 percent of the lot area (on lots smaller than 5,000 square feet). Decks must be constructed in conformance with the details contained herein. Provisions contained in this document that are not included in the IRC are considered good practice recommendations. wood decks that are attached to the house to resist lateral forces. In the DCA6 you specify a live load = 40psf. I thought the live load requirement for decks and balconies was 100 psf? live load floor joist span tables in chapter 7 of the state residential code (based on the 2012 International Residential Code). Is Your Deck Safely Connected to Your House? Provisions contained in this document that are not included in the IRC are considered good practice recommendations. STATE BUILDING CODE INTERPRETATION NO. If your deck is more than 36 inches above the ground: your deck counts toward the percentage of your property on which you can build (called lot coverage). In order to prevent potentially hazardous building practices, local building codes usually lay out a set of standards for deck construction. Does the DCA6 apply to canopies or awnings? The building code governs the method of construction, materials, means of support, attachment and requires safety features such as guard rails and hand rails. Information gathered from years of frequently asked questions related to building code provisions for decks, deck construction details, and AWC’s Design for Code Acceptance 6 (DCA6) – Prescriptive Residential Wood Deck Construction Guide will be presented. The State of Georgia is one of the early adopters of the 2012 International Codes: Georgia will start enforcing the 2012 International Building Code (IBC) and International Residential Code (IRC) next month. Includes guidance on provisions of the 2012 International Residential Code (IRC) pertaining to single level residential wood deck construction. Deck and balcony collapses injure occupants every year. Thinking about your next spring project or do you have a client that needs a wood deck designed? �?�Z�K|��-��N ���� Um����Cil�b����hU�����٩���+���lD������P~`G��4����@]���_osCZ�[��jV�r�N��RW�Ae��|~0��N~�v��?���i�9 ���.��Jq�����Xs���c�� �d�!�\�ه4���.��� �{�! Building codes are in place to ensure safety, and virtually every state and municipality enforces codes for deck construction. Can I specify proprietary fasteners such as gun nails? We do not limit the size of decks that are less than … Computer deck design programs are … The IBC requires 42" high guardrails. In the state of Arizona, every local jurisdiction is responsible for establishing and enforcing building codes.However, the Manufactured Housing Division, part of the Arizona Department of Housing (ADOH), maintains standards of safety and quality for all manufactured homes, factory-built buildings, and accessory structures. Identify minimum prescriptive wood deck requirements. This webinar will provide an overview of DCA 6 along with its Commentary and Appendices and include several examples showing application of the deck guide. Deck Footings. AM101.2Deck design. Maximum nosing of 0.75 "to 1.25" - maximum nosing radius of 9/16 ". e�WL��%���g:�gQw��t�:��F��Ӳ��t@X4�b��E�A:�D�Yt��E{���a�Yt��v��k�������xz���M�q��9:����b��s���>G�秧I�Մ�6��-~�$�z��aV�X ���>f����h)��� nsƢ�Iz? ��;�N밵)��6p+Q�KY]��U���g����Iǥ֘�g���S�SS ���p�ba� Lȥ���ܩ�A���A��:�����_ʃX_��� �d��K�6����T�v/��O��,�2yd�J����G-|��_}_doe�|w iÆQZd���%a&�6�z����.�Ĩ��pq��*����.�]Dƪ6]\�o��l���� �E��xzy8����5�Mi���["�_ڌ��hz��z����Q��5L����]iH�L�@��4�Ӑ+*,� ��&.��%��o�גn� t% ��8OX����c,���@�N�9��1�� �dj�L��r��mJ�o\�h��e��{�Z����In;�4���_XWW���3?�l���y_:�Ru���X��d5�K�pq�H���@�9qRV�����o�1O�b�J��[i�I�V��V�,4��`e ./߰��-�٤?�g�M�a����C.Wa���u���=������w�O������`� Design for Code Acceptance (DCA) 6 - Prescriptive Residential Wood Deck Construction Guide - 2015 IRC Version, Design for Code Acceptance (DCA) 6 - Prescriptive Residential Wood Deck Construction Guide - 2012 IRC Version, (Replaced by latest version of TR10 - Calculating the Fire Resistance of Wood Members and Assemblies), DCA 2 - Design of Fire-Resistive Exposed Wood Members. h�bbd```b``��� �i�d���q`[0���D���h�E�ٺ`�j0 6�mX�^l;�dY���h},�vC(�t�&-@�1�Ď3�ׁD��z��H�� �W$�`b��t���������l&�#�30�y$��a 0 � Residential Code of Ohio (RCO) Deck and Porch Construction Pertinent Code Sections ... above the porch or deck on the interior side of the screening. DCA6 has been updated to include guidance on provisions for the 2012 International Residential Code (IRC) pertaining to single level residential wood deck construction. Discover additional resources available for wood deck design and construction. %PDF-1.7 %���� DCA 6 has been recently updated to include guidance on provisions in the 2012 International Residential Code (IRC) pertaining to single level residential wood deck construction. For a copy of DCA6-09, which is based on the 2009 IRC, click here. Footings for decks shall maintain 5’ of separation from existing or proposed septic systems and leach fields.” 109-186(1)(d). Hundreds of wood decks get built every year and some without the proper guidance for designing or constructing a safe deck. endstream endobj startxref Is there a soil capacity that can be assumed or do you have to do an actual test? Phone: 517-241-9317. bccbldg2@michigan.gov. Building code requirements for exterior decking railings and stairways are especially stringent because decks fall into the category of critical health and safety matters. Maximum 36 "oc solid stringer spacing for 2" thick treads. Some building departments also publish their own codes which may differ somewhat from the IRC. Responsible for administration and enforcement of the Michigan Building Code (MBC) and the structural provisions within the Michigan Residential Code by performing inspections and issuing certificates of occupancy. %%EOF Before you begin a project, it is important that you become familiar with all the City of Ankeny building and zoning regulations that apply to your project. Diagnose common challenges faced when designing and building residential wood decks and how to overcome them. Most jurisdictions follow the International Building Code, which devotes one section—R507—to deck construction. Equivalencies: 1.0 Hours of Instruction = 0.1 Continuing Education Units (CEU) = 1 Professional Development Hours (PDH) = 1 Learning Units (LU). Building officials may print a reasonable number of copies of DCA 6 for use with permits. Depending upon building code requirements and soil conditions in your area, footings may also be required beneath the piers to spread the deck’s weight out. What are the requirements for locations of diagonal knee braces? H�\��j�0����l/�sXK&PZ�؁e{ �V2�bǹ��χ���?K��$�kw��@ߝ=z���:�0�4)+�J��+�b�� ������ƀ~�����4� }s��쾮�h�Z��3j�-HC�n_��@�����W~;�_��f��.s1�H\,踞��"��sX-A-��˻l�7w�U1�(�EX��N\f.#W���u�:�)�)�9�9r�� |��c�71OU���. WOOD DECK CONSTRUCTION GUIDE Based on the 2015 Michigan Residential Code Revised May 17, 2016 The details in this document apply to residential decks only. That percentage varies by zone. Typically the railing is built inside the screening as in this photo (from my … Mecklenburg County Code Enforcement's Deck Brochure Frequently Asked Questions for Residential Projects: A Customer Guide; Residential Swimming Pools, Spas & Hot Tubs; Sunrooms: A How-To Guide; Plan Review Tools for the Novice. For all other decks, a Building Permit and Occupancy Permit will be required. It is estimated that over 40 million decks in the US are more than 20 years old, meaning they were constructed before today’s building codes and established best practices. Pro Tips on Building a Code-Compliant Deck By Rob Robillard. Overall deck length shall be equal to or less than overall deck width. Zoning Requirements: Decks are also required to meet the land use and setback requirements of the zoning code. Tc��1�P��6K��x0*h��+1�%q��m����E� ;�?fsr��M���t걡��F��U���-�Z����EK6֠!��ѨU�^���t>^~�g������4���5-E�ͽN 377 0 obj <>/Filter/FlateDecode/ID[<3D64BA45E35FA045AC5DDFC328370DFF><04FABCC997BEBA41B7894B2BA49BCFFB>]/Index[341 65]/Info 340 0 R/Length 161/Prev 639978/Root 342 0 R/Size 406/Type/XRef/W[1 3 1]>>stream /$���� Click on PDF below to download the application and /or guidelines for your project. In Prescriptive Residential Wood Deck Construction Guide (DCA 6) Table 2, why, for a given joist size, does the overhang span sometimes increase as joist spacing increases? City Hall 124 W Michigan Avenue Lansing, MI 48933 Phone: 517-483-4000 Monday - Friday, 8 a.m. - 5 p.m. 6 – Prescriptive Residential Wood Deck Construction Guide (DCA 6) which may be downloaded from the AWC website here http://awc.org/codes-standards/publications/dca6 Requirements of the 2012 International Residential Code and other provisions are reflected in this document. 404 0 obj <>stream The building code (IRC) for decks applies whether the deck or porch is open or screened. See DECK FRAMING PLAN for definition of deck length and width. That includes new requirements for deck construction — but when it comes to decks, Georgia has created its own prescriptive standard. The building codes of Michigan include the the 2015 Michigan Building Code, 2015 Michigan Mechanical Code, 2015 Michigan Rehabilitation Code, 2015 Michigan Plumbing Code, 2015 Michigan Residential Code, International Energy Conservation Code 2015 (IECC 2015), and the National Electrical Code, 2017. Roofed porches (open or screened-in) are permitted to be constructed using these provisions. Maximum 18 "oc notched stringer spacing for 2" or 5/4 "thick treads. By contrast, deck code is truly a matter of life and death and preventing serious injury. Decks require an open footing inspection, as well as a framing and a final inspection. Hundreds of wood decks get built every year and some without the proper guidance for designing or constructing a safe deck. Includes Commentary and Appendices. Identify minimum construction detailing requirements. Figure 18 of DCA6 prohibits attachment of the ledger to an overhang or bay window. However, AWC DCA 6, which has been recently updated, includes guidance on provisions for the 2015 International Residential Code (IRC) pertaining to single level residential wood deck construction. 3. Provisions contained in this document that are not included in the IRC are considered good practice recommendations. '"�ϧE������f@&�Ս��OǓ�O#����gW:�d0t:�J��8}̢��Q�[k)� �?Oҙ����}X���i0�Q�H'����~� ����u#��h�l�T��r�xl~7�g(R�G�e���?s�����E~���O�b���a�uZ�����G�&A[�@��������ZHss��s��C���lt�s����ܮԸ7��Qri���� Provisions contained in this document that are not included in the IRC are considered good practice recommendations. Here is a summary of some of the requirements: If positive connection to the primary building structure cannot be verified during inspection, decks shall be self supporting. The National Building Code of Canada sets basic parameters on decks, but provinces each have their own modifications based on climate. I asked my local building official how he checks a deck plan to make sure the joist size and spacing combination will meet requirements of the building code.He goes to the 40 lb. Categorize code-compliant wood deck components versus those requiring approval by the authority having jurisdiction. �w�@��Vf3Tt L{Ι@Z ���"��L���px�5�+d6)5\a�����A�a��ˡ�Ml3D4&/{�؁A韉����m�^�݁ڑmq���1��>��́�s�$ȍ@��8�4i�h��8b�` �= The presentation will provide an overview of the significant changes to the DCA 6 and include several examples showing application of the guide. Delhi Charter Township Ingham County, MI 2074 Aurelius Road Holt MI 48842 Phone: 517-694-2135 APPLICABLE BUILDING CODE 2017 OREGON RESIDENTIAL SPECIALTY CODE (ORSC). That is, you still need a 36-inch high code-approved railing if the deck surface is more than 30 in. Also, AWC has developed a one-page PDF that can be posted to the jurisdiction's website to provide an overview and links to the AWC document. In either case, you are allowed to build taller guardrails as long as they … Understand the scope and limitations of DCA 6, Become familiar with the types of decks covered by DCA 6 and their differences, Become familiar with minimum sizing requirements for various deck structural elements, Understand the types of loads residential decks are designed to resist, Identify deck provision changes from the 2015 IRC and the corresponding DCA 6 along with a refresher on 2012 IRC provisions, Identify minimum prescriptive wood deck requirements, Describe deck construction including wood members and fasteners, Discuss provisions in DCA6 Commentary and provide other resources. There are approximately 40 million decks in the United States, and only half of those are code-compliant. 16-11 CODE: 2015 International Residential Code SECTION: Section R301.5 Live load – Table R301.5 – Minimum Uniformly Distributed Live Loads Section R507 Exterior Decks QUESTION: The state amended the live load in Table R301.5 for decks and balconies from 40 pounds per square foot (psf) to 60 psf. The deck ledger must be a 2x8 minimum Your deck drawings will indicate the size, number, and location of deck piers or deck footings. Construction can not deviate from the details herein unless prior approval is obtained from the authority having jurisdiction. Discuss provisions in DCA6 commentary and provide other resources. These specifications will be detailed in your deck drawings and guided by local building codes. Decks The 8th edition of the Massachusetts State Building Code provides a prescriptive table for ledger board attachment of decks. Identify minimum material requirements for deck construction including wood members and fasteners. Building Division. 0 It is especially important to build decks with safety in mind in cold areas such as Michigan, to increase durability and minimize injuries from slipping during cold, icy months. We will teach you how to determine the code compliant size of your footings based on the soil type and tributary loads. Understand design requirements and available resources for both prescriptive and engineered deck designs. DCA6-12 contains new tables and other criteria based on changes to design values for all grades and sizes of visually-graded Southern Pine lumber effective June 1, 2013. Equivalencies: 2.0 Hours of Instruction = 0.2 Continuing Education Units (CEU) = 2 Professional Development Hours (PDH) = 2 Learning Units (LU). Does this include small cantilevers on the house such as brick ledge cantilevers or cantilevers to accommodate exterior insulation? Open risers: maximum opening of 4". Our Seattle Municipal Code (SMC) limits the size and placement of your deck. LIMITATIONS OF USE USE OF AND ANY MODIFICATIONS TO THESE READY-BUILD PLANS IS SUBJECT TO REVIEW AND APPROVAL BY THE BUILDING DEPARTMENT HAVING JURISDICTION. View a free copy of the North Carolina Building Codes through the ICC. Prescriptive Deck Details Based on the 2012 International Residential Code This design document applies to single-span, single-level residential decks only. Many code requirements, while important, rarely touch upon life and death matters. Check out our deck footing frost map to help you understand how deep your footings will need to be excavated. Deck safety is a real problem. ,�%�����a|�#�|d�������v7�ܭAV�8T7+c�[o@Kb�;��5Ě�9'�,��Ax��p�ލ��[ 341 0 obj <> endobj Minimum post size is 6x6 nominal and maximum post height shall be … DECK BUILDING CODE TIPS. q��EZ!��ܖ�r[ć,d���pm�-��f�ĦIK8�) To encourage compliant deck design and construction, American Wood Council (AWC) has published Design for Code Acceptance No. Become familiar with the Prescriptive Residential Wood Deck Construction Guide (DCA6) and the significant changes that have been made. Deck construction shall meet the requirements of the 2018 Kentucky Building Code which adopts and amends the 2015 International Residential Code. Learn everything you need to know about installing concrete footings to support your deck. Describe deck construction including wood members and fasteners. Does the wet service factor apply for residential wood decks? Residential Wood Deck Design (Structure Magazine) April 2017, Manual for the Inspection of Residential Wood Decks and Balconies, Free Publications including resources for Outdoor Decks, Balconies, Porches, Strong Rail-Post Connections for Wooden Decks, Tested Guardrail Post Connections for Residential Decks, BCD302 – Prescriptive Residential Wood Deck Construction Guide (DCA6 - 2012 IRC Version), BCD303 – Design for Code Acceptance No. Decks must be built according to certain codes to ensure that they are safe for everyone who visits or lives in the home. Every year we hear about decks that collapse under the weight of people or snow load. *Please Note: The entire DCA 6 cannot be posted to a building department website. Ontario's deck building codes are not the same as British Columbia's deck building codes. E-codes (Replaced by latest version of TR10 - Calculating the Fire Resistance of Wood Members and Assemblies), DCA 3 - Fire-Resistance-Rated Wood-Frame Wall and Floor/Ceiling Assemblies, DCA 4 - CAM for Calculating and Demonstrating Assembly Fire Resistance, DCA 6 - Prescriptive Residential Wood Deck Construction Guide, DCA 7 - Meeting Residential Energy Requirements with Wood-Frame Construction - 2012 IECC Version. 6 - Prescriptive Residential Deck Construction Guide, http://awc.org/codes-standards/publications/dca6, BCD306 – Prescriptive Residential Wood Deck Construction Guide (DCA6-2015 Version), BCD307 – Deck FAQs: Deciphering DCA6 and More.